期刊
CHINESE PHYSICS LETTERS
卷 27, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/27/5/052101
关键词
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资金
- National Basic Research Program of China [2007CB815003]
- National Natural Science Foundation of China [10675173, 10720101076, 10735100, 10975193]
Angular distributions of the Li-7(Li-6, Li-6)Li-7 elastic scattering and the Li-7(Li-6, Li-7(g.s.))Li-6, Li-7(Li-6, Li-7(0.48))Li-6 transfer reactions at E-c.m. = 23.7 MeV are measured with the Q3D magnetic spectrograph. The optical potential of Li-6 + Li-7 is obtained by fitting the elastic scattering differential cross sections. Based on the distorted wave Born approximation (DWBA) analysis, spectroscopic factors of Li-7 = Li-6 circle times n are determined to be 0.73 +/- 0.05 and 0.90 +/- 0.09 for the ground and first exited states in Li-7, respectively. Using the spectroscopic factors, the cross sections of the Li-6(n,gamma(0,1))Li-7 direct neutron capture reactions and the astrophysical Li-6(n,gamma)Li-7 reaction rates are derived.
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